Bioinspired Synthesis of Lepidocrocite‐Containing Material and Its Catalytic Behaviour in CO Oxidation

Bioinspired Synthesis of Lepidocrocite‐Containing Material and Its Catalytic Behaviour in CO Oxidation

Leptothrix sp. was cultivated in Lieske's medium in the presence of Al foil covered by anodic Alumina. Samples of biomass deposited on lamellae were studied by the methods of infrared, Mössbauer, and X‐ray photoelectron spectroscopy. Sole deposition of γ‐FeOOH on the lamellae was found to take...

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Veröffentlicht in:Helvetica chimica acta 2017-12, Vol.100 (12), p.n/a
Hauptverfasser: Shopska, Maya G., Paneva, Daniela G., Kolev, Hristo G., Kadinov, Georgi B., Ilieva, Ralitsa, Iliev, Mihail, Cherkezova‐Zheleva, Zara P., Mitov, Ivan G.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum oxide
Anodic Alumina
Bacteria
Biomimetics
Biosynthesis
Catalysis
Catalytic activity
Chemical synthesis
CO oxidation
Crystal growth
Crystal structure
Crystallization
Cultivation
Iron
Lamellae
Leptothrix sp
Metal foils
Oxidation
Photoelectron spectroscopy
Spectroscopy
X-rays
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Zusammenfassung:Leptothrix sp. was cultivated in Lieske's medium in the presence of Al foil covered by anodic Alumina. Samples of biomass deposited on lamellae were studied by the methods of infrared, Mössbauer, and X‐ray photoelectron spectroscopy. Sole deposition of γ‐FeOOH on the lamellae was found to take place. This result is explained by the influence of γ‐AlOOH ingredient in the used support due to crystal structure similarity. Thus, iron oxyhydroxide crystallisation could be directed during bacteria cultivation. The catalytic activity of deposited γ‐FeOOH was examined in CO oxidation.
ISSN:0018-019X
1522-2675
DOI:10.1002/hlca.201700172